Scale-beam with indicating-poise.



No. 679,0l0. Patented July 23, l90l.

' D. M. WINANS.

SCALE BEAM WITH l NDIGATING POISE.

(Application filed Mar. 15, 1901.)

(No Model.)

UNITED STATES PATENT OFFICE.

DANIEL M. WINANs, or BINGHAMTON, NEW YORK, ASSIGNOR To, IIORATIO oseoon,OF sAME PLACE.

SCALE-BEAM WITH YINVDICATING-POISE.

SPECIFICATION forming part of Letters Patent No. 679,010, dated July 23,1901.

Application filed March 15, 1901. Serial No. 51,294. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL M. WINANS, a citizen of the United States,residing at Binghamton, county of Broome, and State of New York, haveinvented certain new and useful Improvements in Scale-Beams withIndicating-Poises, fully described and represented in the followingspecification and the accompanying drawings,forminga part of the same.

This invention relates to that class of scalebeam constructions in whichthe movable poise carries a pointer and dial, one of which is rotatedthrough gearing by the movement of the poise on the beam, and thusindicates r; the weight on the dial, the especial object of theinvention being to provide a very simple, cheap, convenient, and durableconstruction, while at the same time securing the accuracy of weightindication required.

As a full understanding of the invention can best be given by a detaileddescription of a construction embodying the invention,such a descriptionwill now be given in connection with the accompanying drawings, forminga part of this application, and illustrating a construction of thepreferred form embodying the invention, and the features forming theinvention will then be specifically pointed out in the claims.

In the drawings, Figure l is a side elevation of the scale-beam andpoise. Fig. 2 is a vertical crosssectiou of the same, taken centrallythrough the poise. Fig. 3 is a central vertical section longitudinallyof the scalebeam, showing the beam and one of the halves of the poise inelevation. Fig. 4 is a cross-section on the line 4 of Fig. 2. Fig, 5

is a detail view of the pointer.

Referring to said drawings, A is the scalebeam, which is preferably ofdouble-T form in cross-section, as shown, thus providing a recessedcentral portion for the figures indicating large weights, shown ashundreds in the present case, so that the figures do not 43 projectbeyond the face of the beam, while at the same time securing with alight beam the extended surfaces required on the top for supporting thepoise and on the bottom for the rack a, which moves the poise-pointer.The poise B is cylindrical and is formed of two halves b I), each ofwhich is grooved to provide one-half of the beam-slot 10, through whichthe beam passes, and with half of the screw-hole 11 for thelocking-screw 0. These halves b b are secured together by the screws 12or in any other suitable manner and are bored centrally for thepointer-shaft d, which passes through the poise and carries the centralpinion e, which engages the rack a, and

at its opposite ends outside the poise carries the pointersf, which moveover the dials g on opposite sides of the poise, these pointers fpreferably being protected by the flanged rims 13, formedon the oppositesides of the poise. These dials are preferably of celluloid or similarmaterial to avoid the use of glass covers for the dials, which areliable to break age, although this feature is not essential to theinvention. The pointersfmust be rigidly secured and accuratelypositioned upon the ends of the shaft (1 in order to secure accuracy ofweight indication on the dials and the desired rigidity of construction,which would be interfered with by any looseness of the pointers,and arigid strong construction is important also in case it isdesired to movethe poise by the pointer, for which my construction is adapted, knobs 14being shown on the pointers for this purpose. Isecure the desired rigidand strong connection between the pointersf and the shaft din a simplemanner, while permitting the pointers to be readily removed,

by providing the ends of the shaft on opposite sides with slots 1 andforming the pointers with slots 2, terminating in openings 3 ofsufiicient size to permit the pointer to be passed over the end of theshaft 01, the slotted portion of the shaft fitting tightly in the slot2, so that by passing the hole 3 over the end of the shaft and thenmoving the pointer so 0 that the walls of the pointer-slot 2 engage inthe slots 1 on the end of the shaft and drawing the pointer up tight afirm rigid connec tion is secured, while the pointer may bereadilydetached. Thelocking-screwcis preferably provided with aslightly-enlarged head 4: at its inner end, so that it cannot bewithdrawn from the poise, which head may well be made by solder, thisscrew being inserted in one of the poise halves b or b in assembling theparts and then laying the other by laying it in the half of thescrew-hole 11 I00 poise half over it. To avoid wear of the top of thescale-beam by the locking-screw c, a thin loose piece of metal 5 ispreferably interposed between the set-screw and beam, and this aids alsoin avoiding the movement of the poise and pointer by the set-screw inlooking. This loose piece of metal 5 is placed in a recess formed in theupper part of the halves b b above the groove 10, so that the shouldersformed at opposite ends of this recess secure the movement of the piece5 with the poise as the latter moves along the beam A.

In the use of the scale-beam it will be understood that the hundreds areread off the scale-beam and the units and tens from the dials, themovement of the poise between two figures on the beam giving thepoise-pointers a complete rotation. After the poise has been roughlypositioned by the movement of the poise by hand it may be accuratelyadjusted by rotating one of the pointers by the knob 14, which moves thepoise slowly on the scale beam. The scale beam illustrated weighs up tosix hundred pounds, the indications on the poise-dials being to onehundred. In the case of scale-beams intended for larger weights, whereit may be desired that the poise should indicate to thousands or wherefor any reason a greater travel of the pointer is desired, this mayreadily be provided for by using multiplying-gearing between the rackand pointer;

\VhileI have shown weight-figures on oppo' 1. The combination with ascale-beam and its rack, of a poiseniovable on said beam and carrying ashaft formed with slots 1 at the end, a pointerfprovidedwithahole3adapted to pass over the end of the shaft and a slot 2 adaptedto receive the slotted portion of the shaft, and gearing connecting saidshaft with the rack, substantially as described.

2. The combination with the beam A having rack Ct on its lower side, ofthe two-part indicating-poise B grooved to form the beamslot and havingshaft cl carrying the rotating indicating member, gearing between saidshaft and rack, and locking-screw c at the top of the poise in a holeformed partly in each part of the poise, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

DANIEL M. \VINANS.

Witnesses:

THEO. R. TUTHILL, GEO. DANA Snssrons.

